TWI390170B - An air supply device and a high-temperature powder and granule cooling device provided with the air supply device - Google Patents

Description

Air supply device and high-temperature powder and granular cooling device provided with the air supply device

The present invention relates to an air supply device that supplies air to a carriage moving in a carriage path, and a sintered ore or pelletized high-temperature sintered device provided with the air supply device Ore) A cooling system for hot grain/lump material that is mounted on a conveyor and cooled.

As one of the high-temperature powder and particle cooling devices, there is a sinter cooling device. The sintered ore cooling device is configured such that the sintered ore which is a high-temperature powder or granule is placed on the conveying body, and generally, while moving along the circular moving path, the cooling air is discharged upward from the lower side of the conveying body to cause sintering. Mine cooling (see, for example, Patent Documents 1 to 3).

In the sintered ore cooling device, a carrier that is connected to a plurality of pan-carried pan carriages is disposed between the inner peripheral side wall and the outer peripheral side wall of the circular path. A cool-air box is provided at the bottom of the pot and a cooling air is supplied therein. The bellows of each pot slot is connected to the stationary circular duct by a connecting pipe, and is also movably and freely embedded by the water sealing device on the fixed side annular duct. A movable circular duct is connected to the air duct, and a cooling air supply device is disposed through the connecting duct to supply cooling air.

The water sealing device has an inner circumferential annular water sealing chamber and a peripheral annular water sealing chamber formed on the movable side annular air duct, and is suspended in the inner circumferential ring by the lower end portion in the fixed side annular air duct. The water seal sealing plate of the water seal in the water seal indoor and the outer annular water seal chamber is formed.

Hereinafter, an example of the above-described sintered ore cooling device will be described in detail with reference to Figs. 9 to 15 .

In Fig. 10, the conveyance body 1 is disposed so as to be movable along the circular path A (carriage path A) shown in Fig. 9 . The conveyance body 1 cools the sintered ore through the cooling air while moving the sintered ore from the ore supply unit 8 to the discharge unit 9 through the cooling unit C. In addition, in the following, the material feed zone 8 and the material discharge zone 9 are collectively referred to as "feed & discharge zones B, or atmospheric zone". B). In other words, as shown in FIG. 15, a waste heat recovery zone D may be provided in a part of the cooling zone C.

As shown in FIG. 10, the conveyance body 1 is composed of a plurality of pot grooves 7, an inner circular side wall 3, and an outer circular side wall 4. The plurality of pots 7 are movably disposed on the pair of right and left guide rails 6a laid along the movement path A via the guide wheels 5a, and are held connected to each other. The inner circular side wall 3 and the outer circular side wall 4 are connected to each other by a connection beam 2 and are disposed on the pot 7 and have side rails 6b. The guided side wheel 5b. Each of the pot grooves 7 can be coupled to the circular side walls 3, 4 so as to be slantable downwardly around the horizontal axis. As shown in FIG. 11, the discharge unit 9 is configured such that the guide rail 6a is displaced downward in the horizontal direction, and the pot groove 7 is inclined downward via the guide wheel 5a, whereby the mounted sintered ore can be discharged downward. As shown in Fig. 12, each of the pot grooves 7 includes a pot body 11 having a guide wheel 5a on the front side and a bellows 12 provided at the bottom of the pot body 11. Further, a ventilation plate 13 in which a plurality of vent holes are formed is disposed on the upper surface of the wind box 12. Further, in the bellows 12, for example, an opening portion 14 is provided at a lower portion of the inner circular side wall 3. As shown in FIGS. 12 and 13, the inner circular side wall 3 of the conveying body 1 is provided with a movable side annular duct 21 which is opened on the circular movement path A shown in FIG. Further, the bellows 12 of the pot 7 and the movable side annular duct 21 communicate with each other via a connecting duct 26 connected to the opening 14. Then, in the movable side annular duct 21, the inner side wall portion 22 and the outer side wall portion 23 form a double wall structure via the inner side plates 22a and 23a and the outer side plates 22b and 23b, thereby forming an inner peripheral ring having an upper opening, respectively. The water seal chamber 24a and the outer peripheral annular water seal chamber 24b. Further, an annular movable side air passage 25 is formed between the inner side wall portion 22 of the movable side annular duct 21 and the outer side wall portion 23.

Then, a fixed-side annular duct 31 is disposed, and the fixed-side annular duct 31 covers the entire upper portion of the movable-side annular duct 21, and forms an annular fixed-side air passage that communicates with the movable-side air passage 25. 37. The fixed-side annular duct 31 is open to the lower surface of the top plate portion 40 and the two side wall portions 32, 33. At the same time, in the top plate portion 40 of the cooling portion C, the plurality of intermediate air ducts 38 are connected from the arc-shaped air header tank 39 shown in Figs. 9 and 10, and the cooling air is supplied to the fixed side air passage 37. Further, the intermediate duct 38 is not connected to the mine discharging section B (the mine supplying section 8 and the mine discharging section 9).

The fixed-side annular duct 31 and the movable-side annular duct 21 are connected via a water seal device 28 as shown in FIGS. 12 and 13 . The water sealing device 28 is suspended from the inner circumferential annular water sealing chamber 24a and the outer circumferential annular sealing chamber 24b, and from the side wall portions 32 and 33 of the fixed side annular air duct 31 via the mounting flange 35. The water seal sealing plates 34a and 34b whose lower ends of the circular water seal chambers 24a and 24b (the circular water seal chambers 24a and 24b) are submerged under the water surface are formed. Further, the cover plates 36a and 36b are protruded so as to cover the outer sides of the annular water seal chambers 24a and 24b on the outer side of the upper portion of each of the water seal sealing plates 34a and 34b. In addition, in FIGS. 12 and 13, the component symbol 24i refers to the upper space of the water seal chamber on the side of the movable side air passage 25.

Further, in the fixed-side annular duct 31, a dead plate 42 is attached to a portion other than the intermediate duct 38 via the expansion joint 41, and on the other hand, the upper end of the inner panel 22a and the outer panel 23a. A labyrinth seal plate 43a, 43b having an upper end close to the orifice plate 42 is attached and a labyrinth seal is applied.

Further, the inner and outer peripheral fixing side plates 51a and 51b which are disposed at the upper end portions of the inner and outer circular side walls 23 and 24 via the sealing device, and the fixed top plate 51c which connects the inner and outer peripheral fixing side plates 51a and 51b from the upper end portion are disposed above the moving path A. The fixed cover 51 is constructed. Further, an exhaust pipe 52 is connected to a predetermined position of the fixed cover 51.

Further, as shown in FIG. 14, a partition plate 47 is provided for each of the connecting ducts 26 (each pot 7) in the movable side air passage 25 of the movable side annular duct 21. The upper end of the partition plate 47 is applied with a labyrinth seal 43c close to the orifice plate 42. Thereby, the movable side air passage 25 is partitioned in the circumferential direction (rotation direction) for each section having the connection duct 26 . In other words, the water sealing device 28 is not provided with the compartment plate as described above.

Further, as described above, as shown in FIG. 15, a heat exhausting portion D may be provided at one portion of the cooling portion C. In the exhaust heat recovery unit D, after the sintered ore is cooled and heat is recovered from the high-temperature air, the air is again sent to the annular duct 31 as cooling air.

Patent Document 1: Japanese Patent Laid-Open No. Hei 4-139380

Patent Document 2: Japanese Patent Laid-Open No. Hei 6-257955

Patent Document 3: Japanese Patent Laid-Open Publication No. 2000-310489

In the sintered ore cooling apparatus constructed as described above, there are the following problems. In the supply and discharge section B, the pressure of the movable side air passage 25 and the bellows 12 is atmospheric pressure. On the other hand, the pressure of the movable side air passage 25 of the cooling unit C is 300 to 500 mmAq (hereinafter referred to as "cooling differential pressure"), and the water seal chamber upper space 24i is also transmitted through the orifice plate 42 and the labyrinth seal plates 43a and 43b. Maintain the pressure with 43c. However, the length of the mouth plate 42 is more than 10 m, and it is difficult to completely seal the length of the portion in the manufacturing technique. Further, with the deterioration phenomenon caused by long-term use, a gap is formed between the labyrinth seal plates 43a, 43b, 43c and the orifice plate 42, and the cooling air of the water seal chamber spaces 24i, 24i is leaked. Therefore, the cooling efficiency is lowered.

Further, the air corresponding to the amount of air leakage leaked from the mine discharge unit B flows into the water seal chamber upper spaces 24i and 24i from the movable side air passage 25 in the cooling unit C, and the inflowing air is poor in cooling. The air is caused to flow toward the air discharge portion B in the water seal chamber upper space 24i, 24i. Thereby, in the annular water seal chambers 24a and 24b of the mine discharge unit B, waves may appear in the water seal, or air may leak from the labyrinth seal portion to the movable side air passage 25 side, and at this time, the annular water seal chamber is accompanied. The water seal in 24a, 24b, the water will fly to the movable side air passage 25. The water seal which is scattered and retained in the movable side air passage 25 is further scattered in the pot 7 and adheres to the wall surface of the discharge unit B or the pot 7 or the like. In addition, when the adhered water droplets adhere to the solidified sinter dust and grow, wet dust is formed, and the pot 7 or the like is subjected to corrosion or clogging, which hinders normal operation. Moreover, the water seal performance is deteriorated due to the wave or scattering of the water seal, and the cooling efficiency is lowered.

In order to cope with the above problem, it is necessary to adjust the level of the upper end of the partition plate 47 and the upper ends of the labyrinth seal plates 43a, 43b, 43c in all areas, and the management and the port plate 42 are almost free of gaps. However, it is difficult to manage the majority of the labyrinth seal plates 43a, 43b, and 43c provided in the large movable side annular duct 21. Due to the operation of the equipment and the change over the years, the gap will be further enlarged, resulting in a decrease in sealing performance and inability to adjust during operation of the equipment.

In Patent Document 3, in order to prevent the obstacle caused by the water seal scattering, it has been proposed to supplement the water seal chamber upper spaces 24i and 24i on the movable side air passage 25 side by the supply and discharge unit B as shown in Fig. 16 . Air (auxiliary air). That is, the intermediate duct 38 at the outlet end of the cooling portion C is branched and connected with an inlet side branch pipe (auxiliary air supply means) 61a, and the front end of the inlet side branch pipe 61a is connected to the entrance of the discharge section 9 The top plate portion 40 of the side annular duct 31, and the intermediate duct 38 at the inlet end of the cooling portion C are branched and connected with an outlet side branch pipe (auxiliary air supply means) 61b, and the front end of the outlet side branch pipe 61b The top plate portion 40 of the fixed-side annular duct 31 connected to the outlet of the ore supply portion 8. Then, the auxiliary air supplied from the branch pipes 61a and 61b is supplied to the inner water seal chamber upper spaces 24i and 24i from the both side portions of the orifice plate 42 between the expansion joints 41 arranged at intervals. Thereby, the air velocity which flows in the water seal chamber upper space 24i, 24i to the side of the discharge part B can be largely relieved by the auxiliary air supplied from the branch pipes 61a and 61b, and the water seal can be prevented from scattering.

However, in the method proposed in Patent Document 3, when the amount of air leakage increases, a large amount of auxiliary air for back pressure flows, and as a result, air leakage of the cooling air increases, and the balance is lost, and the air leakage obstacle occurs.

The present invention has been made in view of the above circumstances, and an object thereof is to provide an air supply device which is used when cooling high-temperature powder or granular materials such as sintered ore ore, and which is excellent in use efficiency and excellent in maintainability, and is provided with the air supply. High temperature powder and granule cooling equipment for the device.

In order to achieve the above object, the present invention provides the following air supply device and high temperature powder and particle cooling device.

[1] An air supply device comprising: a plurality of transport bodies arranged to be movable along a circular movement path; and a movable side annular duct disposed along the movement path and connected to the air duct via a connecting duct Each of the transporting bodies and the fixed-side annular ducts are disposed along the movement path, and are movably fitted to the movable-side annular duct via a water seal device; and the movable-side annular duct and the fixed-side annular ring The air duct forms an annular air passage, and the water sealing device is composed of an annular water seal chamber disposed along the movement path and a water seal sealing plate having a water seal that is not in the annular water seal chamber at the lower end portion. At a predetermined position, an atmospheric pressure portion for preventing leakage of air in the transport body is provided. The air supply device is characterized in that the annular water seal chamber upper space on the annular air passage side and the movable side annular air duct side The annular air passage communicates with each other, and the annular air passage on the movable side annular duct side communicates in the circumferential direction, and the atmospheric pressure portion includes a closed duct that closes the connecting duct. mechanism.

[2] The air supply device according to [1], wherein the annular air passage of the movable side annular duct is communicated in the circumferential direction, and the movable side annular duct is not provided in the circumferential direction. A compartment plate for the movable side air passage.

[3] The air supply device according to [1], wherein the annular air passage of the movable side annular duct is connected in a circumferential direction, and the ring of the movable side annular duct is partitioned in the circumferential direction. The compartment plate of the air passage is provided with a notch.

[4] The air supply device according to any one of [1] to [3] wherein, in the connecting duct closing mechanism, a windshield is provided in the connecting duct, and the windshield is kept closed in the atmospheric pressure portion And the windshield remains open except for the above atmospheric pressure portion.

[5] The air supply device according to any one of [1] to [3] wherein, in the connecting duct closing mechanism, the air duct closing plate is attached to the fixed side annular duct of the atmospheric pressure portion, The inlet of the connecting duct is closed by the connecting duct closing plate.

[6] The air supply device according to any one of [1] to [5] wherein a foreign matter intrusion plate is provided on an upper portion of the annular air passage side to prevent foreign matter from invading from the annular air passage. To the annular water seal chamber.

[7] The air supply device according to any one of [1] to [6] wherein a means for recovering foreign matter in the annular water seal chamber is provided.

[8] A high-temperature powder and granule cooling device, comprising: the air supply device according to any one of [1] to [7], wherein air supplied from the air supply device to the transport body is used Cool high temperature powders and granules.

[9] The high-temperature powder-granule cooling device according to [8], wherein the conveying body is provided with a circular side wall disposed on the inner side and the outer side, and a plurality of pot grooves in which high-temperature powder particles are placed at the bottom of the circular side walls. According to the configuration, the air supplied to the transport body is cooling air for cooling the high-temperature powder or granules mounted in the pot.

[10] The high-temperature powder-granular cooling device according to [8] or [9], wherein the side rail and the side wheel are provided with a side guide supporting the transport body, and the side wheel is even The structure of the position can also be adjusted during the movement of the transport body.

According to the present invention, it is possible to provide an air supply device which is excellent in use efficiency and excellent in maintainability, and a high-temperature powder and granular body cooling device including the air supply device.

Hereinafter, an embodiment of the present invention will be described by taking as an example a cooling device for a sintered ore of a high-temperature powder or granule. In the present specification and the drawings, components that have substantially the same functional configurations are denoted by the same reference numerals, and the description thereof will not be repeated.

[Embodiment 1]

The basic configuration of the sintered ore cooling apparatus in the first embodiment is the same as that shown in Figs. 9 to 11 described above.

The sintered ore cooling device according to the first embodiment has a conveying body 1 that is displaceably movable along the circular movement path A shown in Fig. 9 . The sinter is placed on the conveyance body 1, and is cooled by the cooling air while moving from the ore supply unit 8 to the discharge unit 9 through the cooling unit C.

As shown in FIG. 10, the conveyance body 1 is composed of a plurality of pot grooves 7, an inner circular side wall 3, and an outer circular side wall 4. The plurality of pots 7 are movably disposed on the pair of left and right guide rails 6a laid along the movement path A via the guide wheels 5a, and are coupled to each other. The inner circular side wall 3 and the outer circular side wall 4 are connected to each other via the connecting beam 2, and are disposed on the pot groove 7, and have side wheels 5b guided by the side rails 6b. Each of the pot grooves 7 is connected to the circular side walls 3, 4 so as to be vertically slantable downward about the horizontal axis.

In the discharge unit 9, the guide rail 6a is displaced downward, and the pot 7 is inclined downward via the guide wheel 5a, whereby the mounted sintered ore can be discharged downward.

As shown in Fig. 12, each of the pot grooves 7 includes a pot main body 11 having a guide wheel 5a on the front side and a bellows 12 (cool-air box 12) provided at the bottom of the pot main body 11. The bellows 12 has a ventilating panel 13 (louver-board 13) thereon. Further, in the wind box 12, for example, an opening portion 14 is provided at a lower portion of the inner circular side wall 3, and a movable side ring opening along the moving path A is provided on the inner circular side wall 3 The air duct 21, the bellows 12 of the pot 7 and the movable side annular duct 21 communicate with each other via the connecting duct 26 connected to the opening 14. Further, in the movable side annular duct 21, the inner side wall portion 22 and the outer side wall portion 23 are formed in a double wall structure by the inner side plates 22a and 23a and the outer side plates 22b and 23b, whereby the inner peripheral ring having the upper opening is formed respectively. The water seal chamber 24a and the outer peripheral annular seal chamber 24b. Further, an annular movable side air passage 25 is formed between the inner side wall portion 22 and the outer side wall portion 23 of the movable side annular duct 21.

The fixed-side annular duct 31 covers the entire upper portion of the movable-side annular duct 21, and forms an annular fixed-side air passage 37 that communicates with the movable-side air passage 25. The fixed side annular duct 31 is formed by the top plate portion 40 and the two side wall portions 32, 33 to be open below. Glyph profile. In the top plate portion 40 of the cooling portion C, a plurality of intermediate air ducts 38 are connected from the arc-shaped air header tank 39, and cooling air is supplied to the fixed side air passages 37. Further, the intermediate duct 38 is not connected to the supply and discharge unit B (the ore supply unit 8 and the discharge unit 9).

The fixed-side annular duct 31 and the movable-side annular duct 21 are connected via a water seal device 28 as shown in FIGS. 12 and 13 . The water sealing device 28 is suspended from the inner circumferential annular water sealing chamber 24a and the outer circumferential annular sealing chamber 24b, and from the side wall portions 32 and 33 of the fixed side annular air duct 31 via the mounting flange 35. The water seal sealing plates 34a and 34b whose lower ends of the circular water seal chambers 24a and 24b (the circular water seal chambers 24a and 24b) are submerged under the water surface are formed. The reference numerals 36a and 36b are cover plates which are provided on the outer side of the upper portion of each of the water seal sealing plates 34a and 34b so as to cover the outer sides of the annular water seal chambers 24a and 24b.

Further, the inner and outer peripheral fixed side plates 51a and 51b which are disposed at the upper end portions of the inner and outer circular side walls 23 and 24 via the sealing device, and the fixed top plate 51c which connects the inner and outer peripheral fixed side plates 51a and 51b from the upper end portion are disposed above the moving path A. The fixed cover 51 is formed, and an exhaust pipe 52 is connected to a predetermined position of the fixed cover 51.

Further, in the present embodiment, as shown in FIG. 15, an exhaust heat recovery unit D is provided in a portion of the cooling unit C, and after the heat is recovered from the high temperature air by cooling the sintered ore in the heat recovery unit D, The air is again sent to the fixed side annular duct 31.

Thus, the first embodiment has the following configuration.

(A) The water seal chamber upper spaces 24i and 24i and the movable side air passage 25 which are conventionally provided on the side of the movable side air passage 25, as shown in Figs. 1 and 2, which are important cross-sectional views of the first embodiment of the present invention. The labyrinth seal portion (the orifice plate 42 and the labyrinth seal plates 43a and 43b) and the upper portion of the water seal chamber upper spaces 24i and 24i on the movable side air passage 25 side communicate with the upper portion of the movable side air passage 25 to allow air to flow.

(B) As shown in FIG. 3, the partition plate 47 provided in the movable side air passage 25 and the labyrinth seal plate 43c are not provided, and the movable side air passage 25 communicates in the circumferential direction.

(C) A windshield 81 is provided in each of the connecting ducts 26.

In the supply and discharge section B, as shown in FIG. 1, when the closed state is reached, the connecting duct 26 is closed to suppress the outflow of the cooling air, and in the cooling unit C, as shown in FIG. The connecting duct 26 is opened to supply cooling air to the bellows 12. In addition, the opening and closing of the windshield 81 is automatically performed by mechanical or electrical control. In other words, the windshield 81 uses a butterfly windshield here, but is not limited thereto, and other types of windshields such as a swing windshield may also be used.

By forming the above-described configuration, the movable side air passage 25 and the water seal chamber upper spaces 24i, 24i form a completely connected annular duct having no space in the circumferential direction, and the use of the windshield 81 can surely suppress the supply and discharge portion. Since the air leaks in B, there is no pressure difference between the supply and discharge unit B and the cooling unit C, and the air stops flowing from the cooling unit C to the supply and discharge unit B in the movable side air passage 25.

Further, the movable side air passage 25 and the water seal chamber upper spaces 24i and 24i are completely connected annular ducts having no space in the circumferential direction, and the pressures of the movable side air passage 25 and the water seal chamber upper spaces 24i and 24i are The circumference is also the same.

Further, since the pressure difference does not occur in the circumferential direction between the movable side air passage 25 and the water seal chamber upper spaces 24i, 24i, the circumferential direction does not occur in the movable side air passage 25 and the water seal chamber upper spaces 24i, 24i. air flow. Thereby, in the supply and discharge section B, the flow of air from the water seal chamber upper spaces 24i, 24i toward the movable side air passage 25 does not occur.

As a result, it is possible to prevent the water seals from the annular water seal chambers 24a and 24b from scattering and causing corrosion such as the pot grooves 7 and the like, and occurrence of obstacles such as a decrease in cooling efficiency. Further, the windshield 81 provided in the connection duct 26 is easier to maintain and manage than the conventional labyrinth seal portion (the flap 42 and the labyrinth seal plates 43a, 43b, 43c), and is excellent in maintainability. Further, since the intermediate duct 38 can be provided on the inlet side and the outlet side of the discharge port B for the intermediate duct 38, or the outlet side of the exhaust heat recovery unit D, the intermediate duct 38 can be provided. Increase cooling capacity at the original equipment scale.

Further, in the exhaust heat recovery unit D, after the sintered ore is cooled and the heat is recovered from the high-temperature air, the air is again supplied as the cooling air. Therefore, foreign matter such as dust of the sintered ore is often mixed in the cooling air. When such foreign matter intrudes into the annular water seal chambers 24a and 24b and is deposited, the water seal performance is deteriorated due to damage of the water seal sealing plates 34a and 34b. Therefore, as shown in Fig. 4, it is preferable to provide a foreign matter intrusion preventing plate (baffle) 85 on the upper portion of the water seal chamber upper space 24i, 24i, which prevents foreign matter from entering the cooling air to prevent foreign matter from entering the cooling air. The upper ends of the inner plates 22a and 23a of the water seal chambers 24a and 24b and the mounting flange 35 enter the annular water seal chambers 24a and 24b via the water seal chamber upper spaces 24i and 24i. Of course, in addition to the exhaust heat recovery unit D, when foreign matter is mixed in the supplied cooling air, the foreign matter intrusion prevention plate 85 can be similarly provided.

Further, when foreign matter such as dust intrudes into the annular water seal chambers 24a and 24b and is piled up, it is preferable to provide a suction device for sucking and recovering the foreign matter from the annular water seal chambers 24a and 24b (not shown). Show). The installation position of the suction device can be set in the space for the drainage portion B.

Moreover, when the position between the side rail 6b and the side wheel 5b provided for guiding the support pot 7 from the side is not appropriate, the movement of the pot 7 deviates from the circle and moves away, resulting in a deviation. The movable side annular duct 21 connected to the pot groove 7 via the connecting duct 26 is also rotated. As a result, the relative relationship between the annular water seal chambers 24a and 24b provided on the side of the movable side annular duct 21 and the water seal sealing plates 34a and 34b provided on the side of the fixed side annular duct 31 may largely deviate. , resulting in reduced water seal performance. In order to prevent this, it is necessary to adjust the gap between the side rail 6b and the side wheel 5b which are the causes of the yaw, but the conventional substrate is adjusted to be fixed, so that adjustment can be performed only when it is stopped, so it cannot be When the rotation state is confirmed during the operation, it is difficult to make the correct adjustment.

Therefore, the side wheel 5b is here configured to be adjustable by a screw jack. Thereby, even if the position of the side wheel 5b can be adjusted during operation, the rotation of the annular water seal chambers 24a, 24b can maintain a high roundness, and the water seal performance can be prevented from being lowered.

[Embodiment 2]

The second embodiment is basically the same configuration as the above-described first embodiment. In the first embodiment, the movable side air passage 25 is communicated in the circumferential direction, and the partition plate provided in the movable side air passage 25 is not provided. In the second embodiment, one of the conventional partition plates 47 is notched, and the movable side air passage 25 is communicated in the circumferential direction, and the guiding function of the cooling air remains.

In the second embodiment, as shown in Figs. 5 and 6 of a cross-sectional view of an important part of the present embodiment, a partition plate 47a for making a gap in the upper portion of the conventional partition plate 47 is provided, and the movable side air passage 25 is provided. The circumferential direction is connected.

In addition, in FIGS. 5 and 6, although the upper portion of the conventional partition plate 47 is formed with a notch, a notch hole may be provided in a part of the conventional partition plate 47.

[Embodiment 3]

The third embodiment is basically the same as the above-described first embodiment. However, in the first embodiment, the windshield 81 is provided in the connecting duct 26 as a means for closing the connecting duct 26 in the mine discharging unit B. In the third embodiment, in the supply/exit portion B, the air duct closing plate is attached to the fixed side annular duct 31, and the inlet of the connecting duct 26 is closed by the connecting duct closing plate.

In the third embodiment, as shown in Figs. 7 and 8 of the essential part cross-sectional view of the present embodiment, in the supply and discharge unit B, the transmission locking nut 92b is fixed to the top plate portion 40 of the fixed-side annular duct 31. The lower end of the bar height display bar 92a is attached, and the air duct closing plate (mouth plate) 91 is attached, and the inlet of the connecting duct 26 is closed by the port plate 91. Further, in order to improve the air leakage suppressing effect when the port of the connecting duct 26 is closed by the port plate 91, the inlet of the connecting duct 26 is sealed by the seal ring 93a and the gland seal 93b, which is mounted by the lock nut 94b. The disk spring 94c is fixed to the upper end of the connecting air duct 26 which also serves as the seal ring position gauge rod 94a.

Further, the reference numeral 92c in Fig. 7 is a sealing mechanism between the rod 92a and the top plate portion 40, and the reference numeral 94d in Fig. 7 is a sealing mechanism between the rod 93a and the connecting air duct 26.

In other words, the height position of the flap 91 can be adjusted in position by the rod 92a and the locking nut 92b, and the height position of the seal ring 93a can be adjusted in position by the rod 94a and the locking nut 94b.

Further, as shown in FIG. 8, an inlet guide roller 95 is provided in the orifice plate 91 toward the front end of the inlet and outlet portion B, whereby the orifice plate 91 can smoothly close the connection wind with the movement of the connection duct 26. The entrance to the tube 26.

As a result, in the third embodiment, the same effect as in the first embodiment can be obtained by forming the movable air chamber 25 into the completely connected annular duct without the partition plate.

Further, in the above-described first to third embodiments, the exhaust heat recovery unit D is provided. However, the present invention is also applicable to the case where the exhaust heat recovery unit D is not provided.

Furthermore, in the above-described first to third embodiments, the fixed-side annular duct 31 covers the movable-side annular duct 21 from above, but the present invention can also be applied to the movable-side annular duct 21 as shown in Patent Document 1. The case where the fixed side annular duct 31 is covered from above.

Further, in the first to third embodiments in which the sealing function of the labyrinth seal portion is not provided, the position of the side wheel 5b can be adjusted by the screw jack, and the water seal performance can be prevented very effectively. decline. In addition to the first to third embodiments, the bracket structure of the position of the side wheel 5b can be applied to a sintered ore cooling device having the same water sealing mechanism (for example, Patent Documents 1 to 3).

Further, the cooling device of the sintered ore is taken as an example, but the present invention is also applicable to a cooling device of other high-temperature powder or granules such as particles and high-temperature slag.

The preferred embodiments of the present invention have been described above with reference to the drawings, but the invention is not limited thereto. The technical field of the invention is of course within the scope of the technical scope of the invention, and various modifications and modifications can be easily made without departing from the scope of the invention.

1. . . Transport body

2. . . Link beam

3. . . Inside circular side wall

4. . . Outer circular side wall

5a. . . Guide wheel

5b. . . Side wheel

6a. . . Guide rail

6b. . . Side rail

7. . . Pot trough

8. . . Ministry of Mines

9. . . Mine discharge department

11. . . Pot body

12. . . Bellows

13. . . Aeration board

14. . . Opening

twenty one. . . Movable side annular duct

twenty two. . . Inner side wall

22a. . . Inner panel

22b. . . Outer side

twenty three. . . Outer side wall

23a. . . Inner panel

23b. . . Outer side

24a. . . Inner circumferential annular water seal chamber

24b. . . Peripheral annular water seal chamber

24i. . . Water seal room upper space

25. . . Movable side air passage

26. . . Connecting duct

28. . . Water sealing device

31. . . Fixed side annular duct

32, 33. . . Side wall

34a, 34b. . . Water seal sealing plate

35. . . Mounting flange

36a, 36b. . . Cover

37. . . Fixed side air passage

38. . . Intermediate duct

39. . . Arc-shaped air header

40. . . Roof section

41. . . Expansion joint

42. . . Mouth plate

43a, 43b, 43c. . . Labyrinth seal plate

47, 47a. . . Compartment board

51. . . Fixed cover

51a, 51b. . . Inner and outer peripheral fixed side panels

51c. . . Fixed roof

52. . . exhaust pipe

61a, 61b. . . Branch pipe (auxiliary air supply means)

81. . . Windshield

85. . . Prevent foreign matter from invading the board

91. . . Mouth plate

92a. . . Captain height display stick

92b. . . Lock nut

92c. . . Sealing mechanism

93a. . . Sealing ring

93b. . . Gland seal

94a. . . Sealed ring gauge

94b. . . Lock nut

94c. . . Disc spring

94d. . . Sealing mechanism

95. . . Inlet guide roller

A. . . Moving path

B. . . Supply and export department (atmospheric pressure department)

C. . . Cooling section

D. . . Exhaust heat recovery department

Fig. 1 is an enlarged view of an essential part of a first embodiment of the present invention.

Fig. 2 is an enlarged view of an essential part of the first embodiment of the present invention.

Fig. 3 is an enlarged view of an essential part of the first embodiment of the present invention.

Fig. 4 is an enlarged view of an essential part of the first embodiment of the present invention.

Fig. 5 is an enlarged view of an essential part of a second embodiment of the present invention.

Fig. 6 is an enlarged view of an essential part of a second embodiment of the present invention.

Fig. 7 is an enlarged view of an essential part of a third embodiment of the present invention.

Fig. 8 is an enlarged view of an essential part of a third embodiment of the present invention.

Figure 9 is an overall plan view of a conventional example of a sinter cooling device.

Fig. 10 is a cross-sectional view showing an important part of a conventional example of a sinter cooling device.

Figure 11 is a front view of a conventional example of a sinter cooling device.

Figure 12 is an explanatory view of a conventional sinter cooling device.

Figure 13 is an explanatory view of a conventional sinter cooling device.

Figure 14 is an explanatory view of a conventional sinter cooling device.

Figure 15 is an overall plan view of another conventional example of a sinter cooling device.

Fig. 16 is an explanatory view of a conventional sinter cooling device (Patent Document 3).

8. . . Ministry of Mines

9. . . Mine discharge department

twenty one. . . Movable side annular duct

twenty two. . . Inner side wall

22a. . . Inner panel

22b. . . Outer side

twenty three. . . Outer side wall

23a. . . Inner panel

23b. . . Outer side

24a. . . Inner circumferential annular water seal chamber

24b. . . Peripheral annular water seal chamber

24i. . . Water seal room upper space

25. . . Movable side air passage

26. . . Connecting duct

28. . . Water sealing device

31. . . Fixed side annular duct

34a, 34b. . . Water seal sealing plate

36a, 36b. . . Cover

40. . . Roof section

81. . . Windshield

Claims (10)

An air supply device comprising: a plurality of transport bodies arranged to be movable along a circular movement path; a movable side annular duct disposed along the movement path and connected to each transport body via a connecting duct; And the fixed-side annular air duct is disposed along the movement path, and is movably fitted to the movable-side annular air duct via a water sealing device; and the movable-side annular air duct forms a ring with the fixed-side annular air duct In the air passage, the water seal device is composed of an annular water seal chamber disposed along the movement path and a water seal sealing plate having a water seal that is not immersed in the annular water seal chamber at the lower end portion, at a predetermined position of the movement path An atmospheric pressure portion for preventing leakage of air in the transport body is provided; the air supply device of the annular air passage side of the annular air passage side and the annular air of the movable side annular air duct side The passage is in communication with each other, and the annular air passage on the movable side annular duct side communicates in the circumferential direction, and the atmospheric pressure portion includes a connecting duct closing machine that closes the connecting duct . The air supply device according to claim 1, wherein the annular air passage of the movable side annular duct is connected in the circumferential direction, and the movable side annular duct is not provided in the circumferential direction. A compartment plate for the side air passage. The air supply device according to claim 1, wherein the annular air passage of the movable side annular duct is connected in the circumferential direction, and the annular air of the movable side annular duct is partitioned in the circumferential direction. The compartment plate of the passage is provided with a notch. The air supply device according to any one of claims 1 to 3, wherein, in the connecting duct closing mechanism, a windshield is disposed in the connecting duct, the windshield is kept closed in the atmospheric pressure portion, and the windshield is It remains open except for the above atmospheric pressure section. The air supply device according to any one of claims 1 to 3, wherein, in the connecting duct closing mechanism, a connecting duct closing plate is attached to the fixed side annular duct of the atmospheric pressure portion, by the connecting The duct closes the board and closes the entrance of the duct. The air supply device according to any one of claims 1 to 3, wherein a foreign matter intrusion plate is provided on an upper portion of the annular air passage side to prevent foreign matter from invading from the annular air passage to the annular water. Sealed indoors. An air supply device according to any one of claims 1 to 3, wherein means for recovering foreign matter in the annular water seal chamber is provided. A high-temperature powder and granule cooling apparatus characterized by comprising the air supply device according to any one of claims 1 to 3, wherein the air supplied from the air supply device to the conveying body is used to cool the high-temperature powder and granules . For example, the high-temperature powder and granule cooling device of claim 8 of the patent scope, wherein The conveying body is composed of a circular side wall disposed on the inner side and the outer side, and a plurality of troughs in which the high-temperature powder and granules are mounted on the bottoms of the circular side walls, and the air supplied to the conveying body is cooled and mounted on the pot. Cooling air of high temperature powders and granules. The high-temperature powder-granular cooling device according to claim 8, wherein the side rail and the side wheel are provided to guide the movement of the transport body from the side, and the side wheel is moved even in the transport body. The structure of the position can also be adjusted.